Alternative switch class for IPlug

[cc_]

Here's some code for a switch that has extra states in between the notmal ones that are used when the mouse is down, like this:



(that switch is based on one from here rearranged to fit the order iplug needs, the modified knobman files are here)

Seems to work...

void ISwitch2Control::OnMouseUp(int x, int y)
{
  mMouseDown=0;
  SetDirty();
}

void ISwitch2Control::OnMouseDown(int x, int y, IMouseMod* pMod)
{
  mMouseDown=1;
  if (pMod->R) {
    PromptUserInput();
  }
  else if (mBitmap.N > 2) {
    mValue += 2.0 / (double) (mBitmap.N - 2);
  }
  else {
    mValue += 1.0;
  }
  if (mValue > 1.001) {
    mValue = 0.0;
  }
  SetDirty();
}

bool ISwitch2Control::Draw(IGraphics* pGraphics)
{
    int i = 1;
    if (mBitmap.N > 2) {
      i = 1 + mMouseDown + int(0.5 + mValue * (mBitmap.N - 2));
      i = BOUNDED(i, 1, mBitmap.N);
    }
    return pGraphics->DrawBitmap(&mBitmap, &mRECT, i, &mBlend);
}

class ISwitch2Control : public ISwitchControl
{
public:

	ISwitch2Control(IPlugBase* pPlug, int x, int y, int paramIdx, IBitmap* pBitmap,
		IChannelBlend::EBlendMethod blendMethod = IChannelBlend::kBlendNone)
	  : ISwitchControl(pPlug,x,y,paramIdx,pBitmap,blendMethod),mMouseDown(0) {
            mDblAsSingleClick=true; }

	~ISwitch2Control() {}

	void OnMouseDown(int x, int y, IMouseMod* pMod);
	void OnMouseUp(int x, int y);
	virtual bool Draw(IGraphics* pGraphics);
 protected:
	int mMouseDown;
};

[cc_]

Found a bug with continuously variabling automation it sometimes drew the wrong images, the line in the draw function should be:

     i = 1 + mMouseDown + 2 * int(0.5 + mValue * (mBitmap.N/2 - 1));

[asiohead]

Nice control ! Was eager to use to test it in my Seq project instead of the IBitmapOverlayControl as you suggested.

But there's one problem tho, I get an error message and my plug crashes.

this is how I implement it:

//Switch2
IBitmap bitmapS2 = pGraphics->LoadIBitmap(SWITCH2_ID, SWITCH2_FN, kSwitch2Frames);
pGraphics->AttachControl( new ISwitch2Control(this, 100, 20,kSwitch2, &bitmapS2, IChannelBlend::kBlendNone));

AttachGraphics(pGraphics);

.... etc ...

//kSwitch2Frames = 4
the button image is defined in recources.h and 'project'.rc

I see the button on the screen, press it, it even works for a millisec, then the plugin crashes. I included the error screen in an attach

[asiohead]

ouch sorry, forgot to initialize the control's parameter ranges